As a cuck who has been in chastity for most of the 6 yrs my wife has been cuckolding me I would have to agree with what Saraha and Steev said about caastration..ie...that if a cuck is castrated then his "desire" to have sex ,if it is not eliminated completely, would certainly be diminished signifigantly, and that would negate the feelings of denial and frustration associated with being horny and wanting to have sex with one's wife, but knowing you can't ,while her bulls can.For those of us in long term chastity, who are not only denied sex,but also denied having orgasms through masturbation,that frustration is even more acute ,and hightened by the fact that it turns us on when our wives have sex with ,and give sex to thier bulls whilee denying it to us,which make sus even hornier, which makes thhe fact that we can't come even more frustrating..(and round and round it goes)
My wife and I have discussed,as gw2n suggested,the desireability of having my penis removed (an operation called a penectomy) while leaving my balls intact, so that i would still have the desire to come,but have no penis to stimulate and therefore no way to acheve an orgasm..That's how it is now with my cock permanently "locked up" in a chastity device, but my wife likes the idea of her being able to tease me by playing with my balls,and allowing me to get on top of her and between her legs with my balls pressed against her pussy but with no cock and no posibilty of enjoyig an orgasm. I like that idea too, but am not sure if it would be more or less frustrating that way..because as it stands now my cock gets semi hard in it's cage and I want to play with it,but can't,and if I didn;thave one at all that might be less frustrating.
Of course, this is just fantasy and talk, becasue a penectomy is a serious operation and no physician would perform it sans a medical reason(penile cancer is the most common) ,as is castration,and to attempt either on ones own would most certainly be rediculous,notwithsstanding thee stories to the contrary.